内容正文:
教学课件
译林英语七年级下册
Unit 5 语法专项—— 形容词的用法 & 情态动词can/could/may
全解精讲+分层练习
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学习目标
1.掌握形容词的两大核心用法及常见搭配
2.区分can/could/may的用法及语气差异
3.能正确运用语法完成填空、选择等题型
4.用所学语法描述动物特征、表达请求与能力
形容词的定义与功能
定义:描述人/事物的特征、性质、状态的词
本单元应用:描绘宠物的外形、性格、状态
例:cute(可爱的)、clever(聪明的)、hungry(饿的)
作用:让语言描述更具体、生动
形容词核心用法1——名词前作定语
1.用法:直接修饰名词,放名词前
2.结构:形容词 + 名词
3.核心作用:说明名词的特征
例句:a soft rabbit 一只柔软的兔子
拓展:a small fish 一条小鱼;a clever dog 一只聪明的狗
形容词核心用法2——系动词后作表语
1.用法:置于系动词后,说明主语的状态
2.结构:主语 + 系动词 + 形容词
3.核心作用:补充主语的特征/状态
例句:The parrot looks colourful. 这只鹦鹉看起来色彩鲜艳。
常见系动词分类
1.状态系动词:be (am/is/are/was/were)
2.感官系动词:look/feel/smell/sound/taste
3.变化/保持系动词:get/become/turn/keep/grow
关键:系动词后必须接形容词作表语
形容词用法小练习(即时巩固)
判断下列形容词作“定语”或“表语”
1.It is a lovely cat.
2.The dog feels soft.
3.I have a happy pet.
4.The bird becomes tired.
定语
表语
定语
表语
情态动词can/could/may 共性
1.后接动词原形,无人称/数的变化
2.否定式直接加not,部分有缩写形式
3.一般疑问句:将情态动词直接提前
4.回答时用对应的情态动词作答
can/could/may 核心用法(能力表达)
1.can:表达现在的能力,意为“能、会”
例:The dog can run fast.
2.could:表达过去的能力,意为“过去能、会”
例:My cat could jump high when it was young.
3.may:不用于表达能力,仅表许可/请求
can/could/may 核心用法(许可表达)
1.can:口语化许可,日常交流用,意为“可以”
例:You can play with my pet.
2.could:委婉请求许可,更礼貌,意为“可以吗”
例:Could I touch the rabbit?
3.may:正式请求/给予许可,正式场合用
例:May I feed the goldfish?
can/could/may 用法对比表
情态动词 能力表达 许可表达 语气特点
can 现在能力 口语化许可 直接、日常
could 过去能力 委婉请求 礼貌、柔和
may — 正式请求/许可 正式、礼貌
情态动词 否定形式
1.can → can't / cannot(口语常用can't)
2.could → couldn't
3.may → may not(极少使用)
关键:否定许可一律用can't,不用may not
情态动词 用法注意点
1.could表委婉请求,回答不用could,用can/may
2.could表过去能力,仅描述过去,与现在无关
3.may表许可多用于正式语境,日常用can/could替代
4.can可表可能性,用于否定句/疑问句:It can't be a bird.
情态动词小练习(即时巩固)
用can/could/may填空
1.I ______ swim now, but I ______ not swim last year.
2.—______ I use your book?(正式)
—Yes, you ______.
3.My brother ______ draw animals well when he was 6.
can
could
May
can
could
语法拓展——形容词修饰不定代词
1.规则:形容词修饰不定代词,要后置
2.常见不定代词:something/anything/nothing/someone
例句:something interesting 有趣的东西
例句:nothing difficult 没什么难的事
语法拓展——形容词比较级(基础)
1.标志词:出现than(比),用比较级
2.规则变形:直接在词尾加er
例句:long → longer;tall → taller
应用:My rabbit's ears are longer than yours.
语法拓展——程度副词修饰形容词
1.常见程度副词:very/so/quite/too
2.用法:放形容词前,不改变形容词形式
例句:very cute 非常可爱;so clever 如此聪明
例句:quite small 相当小;too hungry 太饿了
综合练习一——形容词形式填空
用括号内形容词的正确形式填空
1.The cake tastes ______ (sweet).
2.His dog has ________ (short) legs than mine.
3.There is ______ (fun) news about animals.
4.The cat gets ______ (sad) when it's alone.
sweet
shorter
fun
sad
综合练习二——情态动词填空
用can/could/may的适当形式填空
1.—____________ you help me take care of my dog?
—Yes, I ______.
2.The baby bird ______ fly now. It's too young.
3.When I was a kid, I ________ run very fast.
Could/Can
can
can't
could
综合练习三——单项选择
1.The music sounds ______. We all like it.
A. nicely B. wonderful C. beautifully
2.My cat's eyes are ______ than my dog's.
A. bright B. brighter C. brightest
3.—______ I borrow your book? —Yes, you ______.
A. May; can B. Could; could C. May; may not
4.The dog is ______ and it always helps people.
A. clever B. cleverly C. cleverer
B
B
A
A
综合练习三——单项选择
5.—______ your brother ride a bike at 5? —Yes, he ______.
A. Can; can B. Could; could C. May; may
6.There is ______ in the box. It's empty.
A. something new B. nothing new C. new nothing
7.She sings ______ and her voice sounds ______.
A. beautiful; beautifully B. beautifully; beautiful
8.The little girl looks ______ when she sees the panda.
A. happily B. lovely C. angrily
B
B
B
B
综合练习四——句型转换
1.The parrot is colourful.(对划线部分提问)
______ ______ the parrot ______?
2.My dog can play with a ball.(改为否定句)
My dog ______ ______ with a ball.
3.The rabbit has white fur.(对划线部分提问)
______ ______ the rabbit ______?
4.She could dance at 4.(改为一般疑问句)
______ ______ dance at 4?
综合练习四——句型转换(5-6)
5.The cake tastes delicious.(对划线部分提问)
______ ______ the cake ______?
6.Tom can draw animal pictures.(一般疑问句+否定回答)
—______ Tom ______ animal pictures? —No, he ______.
What is like
can't play
What does have
Could she
How does taste
Can draw
can't
综合练习五——翻译句子
1.这只小狗看起来可爱又聪明。
2.我小时候会骑自行车,现在不会了。
3.我可以看看你的动物朋友吗?
4.她的歌声听起来很美妙。
The little dog looks lovely and clever.
I could ride a bike when I was a child, but I can't now.
May/Could I have a look at your animal friend?
Her song sounds wonderful.
综合练习五——翻译句子
5.这只兔子的耳朵比那只长。
6.你能帮我照顾我的小猫吗?
7.没有什么比和宠物玩耍更有趣。
8.它不可能是一只老虎,只是一只猫。
This rabbit's ears are longer than that one's.
Can/Could you help me look after my little cat?
There is nothing more interesting than playing with pets.
It can't be a tiger. It's just a cat.
语法易错点梳理(1)
1.混淆形容词和副词:系动词后用形容词,动词后用副词
2.形容词修饰不定代词忘记后置
3.情态动词后接动词原形,不要加s/ed
4.could表委婉请求,回答误用could
语法易错点梳理(2)
1.否定许可误用may not,正确用can't
2.看到than忘记用形容词比较级
3.感官系动词(look/smell)后误用副词
4.一般疑问句中,情态动词未提前
单元语法梳理——形容词
1.两大核心用法:名词前作定语、系动词后作表语
2.修饰不定代词要后置,than后用比较级
3.程度副词(very/so)可修饰形容词,放其前
4.系动词分类:状态、感官、变化/保持
单元语法梳理——情态动词
1.共性:后接动词原形,无单三变化,提至句首变一般疑问句
2.can:现在能力、口语许可、否定表可能性
3.could:过去能力、委婉请求(回答用can)
4.may:正式请求/许可,否定许可用can't
课堂小结
1.掌握形容词的两大用法及特殊规则
2.区分can/could/may的能力、许可表达
3.规避语法易错点,正确运用句式
4.结合动物话题,灵活使用语法描述与表达
教学课件
Unit 5 语法专项—— 形容词的用法 & 情态动词can/could/may
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